Firearm



Oct. 24, 1939. A. SEIDEL 2,377,227

FIREARM Original Filed Aug. 20, 1935 YRS! s wA fiizs Patented Oct. 24, 1939 are FIREARM pany of Germany Original application August 20, 1935, Serial No.

3 Claims.

This application is a division of my copending application Serial No. 37,078, filed August 20, 1935, Patent No. 2,138,213, dated November 29, 1938.

,, My invention relates to fire arms, and particularly to automatic pistols with hammer and trigger. It is the object of my invention to improve the trigger mechanism, and especially to simplify the trigger and safety mechanism by a.) providing a single member for cooperation with the connecting rod between the trigger and the hammer, and for performing various individual operations which in the prior art were performed by many individual members.

1 On the drawing an example has been illustrated to show the different features of the invention in connection with the description.

In the drawing:

Fig. l is a longitudinal section of a pistol illustrating the connecting rod and the hammer in the position ready for firing.

Fig. 2 is a similar View showing the parts illustrated in Fig. 1 after the hammer has been cocked from the trigger and is about to become disengaged from the connecting rod.

" Fig. 3 is a similar view showing the parts illustrated in Fig. 1 after the firing of a cartridge, with the breech retracted and the hammer engaged by its catch.

Figs. 4 and 5 are details of the pistol illustrated in Figs. 1 to 3.

In the drawing only those parts of the pistol have been illustrated, which are necessary in connection with the invention.

In automatic fire arms, safety devices are usually provided for preventing operation of the cocked hammer if the arm is not fully closed. Other safety devices are provided in automatic pistols for preventing firing in succession if the trigger is still pulled after a cartridge has been fired. In pistols having a trigger-operated hammer, means must be provided which disengage the connecting rod from the hammer when the trigger is pulled, a short time before the hammer engages with the spring catch.

According to the present invention, the trigger mechanism and the safety device are simplified, and the reliability of the pistol is increased, by providing a single member or slide for performing all the aforesaid functions. The slide which is inserted between the connecting rod and the breech, performs not only the old functions of holding the connecting rod disengaged from the hammer and its catch When the fire arm is not fully closed, and of moving the connecting rod Divided and this application August 24, 1937, Serial No. 160,679.

In Germany July when disengaged from the spring catch and the hammer is cooked by the returning breech and the trigger is permanently pulled, but slide also moves the connecting rod out of engagement with the hammer when the hammer is cooked by the trigger, and a short time before the hammer is arrested by its spring catch. With the object of performing the last mentioned function, the slide is provided with a controlling lug, and the connecting rod is provided with a lifting cam for cooperation with the lug.

Figs. 1 to show the novel slide as arranged on a pistol, having a plain, i. e., not forked, connecting rod 22 the front end of which is connected with the trigger l4, while the rear end of the connecting rod may be held in or out of engagement to the hammer. The slide 5!} is mounted in a recess. 49 of the corresponding side wall of stock I. Its upper face 5! bears against the lower edge 62 of the breech 35, 52 being a crescent-shaped recess in the breech above the upper end of the slide 55. A lug 53 near the upper end of the slide bears on the connectin rod 22 from above. A clearance 56 is provided between the lower edge of the connecting rod 22 and a lug 64 at the lower end of the slide 50. This lower lug (it holds the slide 59 in its recess when the breech fill is removed.

The spring catch or latch 59 for arresting the hammer 37 in its cocked position is fulcrumed at 59 and provided with a lug 66 to be engaged by a tooth E3 of the connecting rod, for releasing a tooth 66 on the hammer 31 from an abutment 6? of the catch.

The three functions of the slide 5!! will now be described.

(1 Control of connecting rod when cooking from trigger In the position illustrated in Fig. 1 a hook 5! at the rear end of the connecting rod 22 engages a lug 58 on the hammer 37 so that the hammer is cooked when the trigger M is pulled and the connecting rod 22 moves in forward direction. The inclined faces of the hook 51 and the lug 58 hold these parts engaged. When the trigger is pulled further, the lifting cam 55 of the connecting rod 22 engages below the upper lug 53 of the slide 5i). The connecting rod 22 is moved down by these means and, a short time before the arresting of the hammer by the catch 59, the hammer becomes disengaged from the connecting rod and is free to strike, as shown in Fig. 2.

(2) S fety against firing in succession Since the operator, after firing a cartridge, cannot release the trigger before the breech returns, ejects the empty cartridge, and re-loads the pistol, means must be provided for preventing operation of the hammer upon the return of the breech, as otherwise the pistol would operate like a machine gun.

When the trigger I4 is operated, step 6| of the connecting rod engages the lug 66 of the spring catch 59 and moves the spring catch beyond reach of the tooth 66 on the hammer. To hold down the hammer by means of the spring catch, before the next cartridge is fired, the connecting rod 22 and the spring catch 58 must be separated. Ihis is effected by the slide 50 which when the pistol is closed, engages in the crescent 52 of the breech ii]. Then the breech slides back and the crescent forces the slide in downward direction, so that the lower edge 62 of the breech engages the upper edge 5] of the slide 56. This movement of the slide causes the connecting rod 22 to be rocked in downward direction about the pin 2!, so that the step 6| of the connecting rod 22 becomes disengaged from the lug GEE of the spring catch 59. The catch is operated by its spring and arrests the hammer in cocked position when the breech returns.

(3) Safety against firing if fire arm is not fully closed The slide 56 automatically sets the pistol at safety when the breech has not yet arrived in its closing position. As long as the breech is not in said position, the upper end of the slide 5! cannot enter the crescent 52, and so it holds down the connecting rod 22 by its lug 53, disengaging the connecting rod from the hammer and the spring catch and causing it to perform an idle movement when the trigger is pulled.

l/Vhat I claim is:

1. In a fire-arm, more particularly a self-loading pistol, having a stock, a pivoted hammer therein, a trigger with a connecting rod adapted to cook the hammer, said connecting rod having a lifting surface, a spring catch for the hammer, and a recoiling breech, the combination with a slide member inserted between the breech and the connecting rod and having an upper face and a lug first to disengage the connecting rod from the hammer, when the breech is not fully closed, second, to disengage the connecting rod from the hammer catch when the hammer is cooked by the recoiling breech and during continued pull on the trigger, and third, to guide the connecting rod out of connection with the hammer during the trigger pull, and shortly before the hammer is in arrested position engaged by the catch; the slide member being provided for this purpose with a guide surface cooperating with the lifting surface of the connecting rod.

2. A fire arm according to claim 1, in which the lug cooperates with the upper edge of the connecting rod, on the one hand and with the lower edge of the breech on the other hand.

3. A fire arm according to claim 1, in which the slide includes a retaining lug and between the lugs the connecting rod is adapted to slide, whereby the intermediary member is secured against falling out in either direction of its movement by the contacting of said lugs with the connecting rod.

ALEX SEIDEL. 

